Question

Ali and Cassim need to cross the forest, which is rectangular in shape, to reach the treasure cave. The forest's side lengths are $(5.6\times {10}^8)\text{and}(3.3\times {10}^6)$. What is the area of the forest?

• A. $1.848\times {10}^{15}$
• B. $18.48\times {10}^{15}$
• C. $1.848\times {10}^9$
• D. $1.848\times {10}^{15}$

Answer 1

The correct option is D $1.848\times {10}^{15}$

The length and width of the rectangular forest is $(5.6\times {10}^8)\text{and}(3.3\times {10}^6)$

To obtain the area of the forest, we have to multiply its length and width
Area = Length $\times$ Width
= $(5.6\times {10}^8)\times (3.3\times {10}^6)$
= $(560\times {10}^6)\times (3.3\times {10}^6)$
= $(560\times 3.3)\times {10}^{6+6}$
= $1848\times {10}^{12}$
= $1.848\times {10}^{15}$